Home / 103,096.58-142,283.24-57,782.20

Finding the Fourth Proportional to 103,096.58, 142,283.24 and 57,782.20

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Solution

The fourth proportional to 103,096.58, 142,283.24 and 57,782.20 is: 79,745.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,096.58 : 142,283.24 = 57,782.20 : x
  2. Step 2: Convert to fraction form
    103,096.58/142,283.24 = 57,782.20/x
  3. Step 3: Cross multiply
    103,096.58x = 142,283.24 × 57,782.20
  4. Step 4: Simplify right side
    103,096.58x = 8,221,438,630.33
  5. Step 5: Solve for x
    x = 8,221,438,630.33/103,096.58
  6. Step 6: Final answer
    x = 79,745.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.